CVE-2026-44226CWE-209

pyLoad: Unauthenticated traceback disclosure via global exception handler in WebUI

Medium · published May 11, 2026

CVSS v3.1
5.3
EPSS
0%
Percentile
33.8
In the wild
Unconfirmed
What it is

pyLoad is a free and open-source download manager written in Python. Prior to 0.5.0b3.dev100, pyload-ng WebUI returns full Python traceback details to clients on unhandled exceptions. Because /web/<path:filename> is reachable without authentication and renders attacker-controlled template names, an unauthenticated user can reliably trigger a server exception (for example by requesting a non-existent template) and receive internal stack traces in the HTTP response. This vulnerability is fixed in 0.5.0b3.dev100.

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00407 · 33.8th percentile
Weakness
CWE-209 · Generation of Error Message Containing Sensitive Information
Published
2026-05-11T16:36Z
EPSS history
Timeline
  • 11 MAY 16:36Z
    pyLoad: Unauthenticated traceback disclosure via global exception handler in WebUI
    cvelistv5